Saya Kawasumi from Chichiiro Toiki.The front-tie top isn't a ribbon in the anime, but the AI made it a ribbon, sorry for the inconvenience.
https://civitai.com/models/1138289/saya-kawasumi-chichiiro-toiki-illustrious-anime-style
saya kawasumi chichiiro toiki anime style, black hair, long hair, sidelocks, ponytail, hair bow, white bow, brown eyes, huge breasts, saya's school outfit, layered dress, purple dress, white dress, frilled dress, spaghetti strap, front-tie top, , saya's school outfit, pink bra, lace-trimmed bra, bow bra, pink panties, bow panties,
